Hybrid Stepper Motors
Hybrid Stepper Motors
Overview
The hybrid stepper motor platform combines the core strengths of permanent-magnet and variable-reluctance stepper technologies, delivering advanced capabilities that improve performance, reliability, and precision control. DC current applied to a 2-phase winding is switched in direction to produce precise 1.8° step rotation, enabling compact designs with high output torque in low-speed positioning applications.
Key Features
- Precise 1.8° or 0.9° step angle (up to 400 steps/rev)
- 2-phase DC winding design with current-reversal control
- High torque output at low speeds
- Brushless design with long-life ball bearings
- Open-loop operation requiring no feedback
- Microstepping capability for fine resolution
- Optional encoder integration for servo-mode operation
- Brushless construction for long life
- Direct-drive capable up to several thousand RPM with encoder feedback
Spec Range
| Item | Range |
|---|---|
| Frame size | 20 mm ~ 86 mm |
| Holding torque | 20 mNm ~ 12,000 mNm |
| Detent torque | 2 mNm ~ 230 mNm |
| Step angle | 1.8° (200 steps) or 0.9° (400 steps) |
| Length/stack configuration | A range of options available |
Applications
- Lab automation equipment
- Medical analyzers
- Step-wise precision positioning tasks
- High-torque multi-pole applications
- Applications requiring enhanced motion precision
Full Model List (48 models, 20STH ~ 86STH series)
Models with a D suffix are standard hybrid motors (1.8° step angle); models with an M suffix are the high-precision version (0.9° step angle).
| Add to compare | Model | Frame Size | Holding Torque (mNm) | Detent Torque (mNm) | Step Angle | Datasheet |
|---|---|---|---|---|---|---|
| 20STH38D | 20 mm | 20 | 2 | 1.8° | View PDF | |
| 20STH45D | 20 mm | 35 | 2.5 | 1.8° | View PDF | |
| 20STH51D | 20 mm | 50 | 0.42 | 1.8° | View PDF | |
| 28STH33D | 28 mm | 70 | 5 | 1.8° | View PDF | |
| 28STH38D | 28 mm | 100 | 0.57 | 1.8° | View PDF | |
| 28STH51D | 28 mm | 130 | 7 | 1.8° | View PDF | |
| 35STH23M | 35 mm | 70 | 3 | 0.9° | View PDF | |
| 35STH27D | 35 mm | 130 | 8 | 1.8° | View PDF | |
| 35STH27M | 35 mm | 110 | 4 | 0.9° | View PDF | |
| 35STH34D | 35 mm | 200 | 10 | 1.8° | View PDF | |
| 35STH34M | 35 mm | 130 | 5 | 0.9° | View PDF | |
| 35STH47D | 35 mm | 380 | 12 | 1.8° | View PDF | |
| 39STH27D | 39 mm | 140 | 7 | 1.8° | View PDF | |
| 39STH34D | 39 mm | 250 | 8 | 1.8° | View PDF | |
| 39STH40D | 39 mm | 350 | 1.7 | 1.8° | View PDF | |
| 42STH34D | 42 mm | 260 | 8 | 1.8° | View PDF | |
| 42STH34M | 42 mm | 190 | 8 | 0.9° | View PDF | |
| 42STH40D | 42 mm | 450 | 12 | 1.8° | View PDF | |
| 42STH40M | 42 mm | 410 | 12 | 0.9° | View PDF | |
| 42STH48D | 42 mm | 580 | 18 | 1.8° | View PDF | |
| 42STH48M | 42 mm | 490 | 18 | 0.9° | View PDF | |
| 42STH60D | 42 mm | 880 | 23 | 1.8° | View PDF | |
| 42STH60M | 42 mm | 950 | 3.26 | 0.9° | View PDF | |
| 57STH45D | 57 mm | 780 | 15 | 1.8° | View PDF | |
| 57STH45M | 57 mm | 700 | 15 | 0.9° | View PDF | |
| 57STH51D | 57 mm | 1,000 | 18 | 1.8° | View PDF | |
| 57STH56D | 57 mm | 1,200 | 22 | 1.8° | View PDF | |
| 57STH56M | 57 mm | 1,000 | 25 | 0.9° | View PDF | |
| 57STH64D | 57 mm | 1,500 | 30 | 1.8° | View PDF | |
| 57STH64M | 57 mm | 1,200 | 30 | 0.9° | View PDF | |
| 57STH76D | 57 mm | 2,000 | 32 | 1.8° | View PDF | |
| 57STH76M | 57 mm | 2,000 | 50 | 0.9° | View PDF | |
| 57STH85D | 57 mm | 2,300 | 50 | 1.8° | View PDF | |
| 57STH85M | 57 mm | 2,200 | 50 | 0.9° | View PDF | |
| 57STH100D | 57 mm | 2,800 | 52 | 1.8° | View PDF | |
| 57STH112D | 57 mm | 3,200 | 55 | 1.8° | View PDF | |
| 60STH56D | 60 mm | 1,700 | 40 | 1.8° | View PDF | |
| 60STH66D | 60 mm | 2,000 | 65 | 1.8° | View PDF | |
| 60STH76D | 60 mm | 2,400 | 10.76 | 1.8° | View PDF | |
| 60STH86D | 60 mm | 3,100 | 90 | 1.8° | View PDF | |
| 60STH100D | 60 mm | 3,400 | 110 | 1.8° | View PDF | |
| 86STH66D | 86 mm | 2,800 | 90 | 1.8° | View PDF | |
| 86STH78D | 86 mm | 4,500 | 100 | 1.8° | View PDF | |
| 86STH98D | 86 mm | 7,500 | 140 | 1.8° | View PDF | |
| 86STH118D | 86 mm | 8,500 | 170 | 1.8° | View PDF | |
| 86STH128D | 86 mm | 10,000 | 210 | 1.8° | View PDF | |
| 86STH156D | 86 mm | 12,000 | 230 | 1.8° | View PDF | |
| 86STH156M | 86 mm | 12,000 | 32.57 | 0.9° | View PDF |